Exhast Manifold Bold on 2.5L

I am missing the rear exhaust post/nut or bolt, whatever it is for the rear of the exhaust manifold. This is causing issues when running under high load. I have checked all around and even the dealer can not get me a part for it. I was wandering if anyone knew what the the specs where so I could check at home depot or somethings.

it is normally a 3/8" x 16 stud in that hole. Make sure that it is not broken off in there. That is a common problem with them. You can ID the thread pitch for certain by removing one of the nuts on a different stud and using a thread ID set. Again I believe 3/8 x 16. If its metric its either 10 x 1.25 or 10 x 1.50. You will probably need a gasket too if its been leaking for a while.